Lamp.



No. 738,689. PATENTED SEPT. 8 1903.

' W.-F. LOUDON.

I LAMP.

APPLIUATION FILED MAR. 15. 1902.

'No MIODEL. 2 sums-5112mm.

.fWitnesses: 01 2262 '1 UNITED" STATES Patented September 8,1903. L

PATENT OFFICE.

LAMP.

SPECIFICATION formingpart of Letters Patent No. 738,689, dated September8, 1903.

Appli oation'filed March 1 902. Serial No. 98,327. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM F. LoUnoN, a citizen of the United States,residing at Stoning-ton,in the county ofNew London and State ofConnecticut, have invented certain new and useful Improvements in Lampsand I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

The present invention relates to improvements in lamps, and moreparticularly to certain improvements in that type of'lamp in which thekerosene is formed into a vapor or gas previous to being ignited andwhich are generally known as hydrocarbon-burners. The object of thepresent invention is to so construct the lamp that the globe thereof maybe readily placed in position or removed there- 3 vented from rattlingwhile the lamp is in use; p

from and be held firmly in position and preand a'further object of theinvention is to provide means for'regulating the admission of air to thedome of the lamp.

To the above ends the present invention I consistsrof the devices and.combinations of f devices which will be hereinaftar described pump maybe attached to place'the oil in the tank a, under pressure sufficient toforce it up the pipe 0 to thevaporizing devices contained in the dome d,from which it is led downthe pipe" e in the form of a gas or vapor tothe burner f, all as will be clearly understood by those persons skilledin this art.

The device as so far y described is of the usual and ordinaryconstruction and in and of itself forms no part of the presentinvention. I

A glass globe g surrounds the burner and the flame and at its lower edgerests upon a circular table h, which is provided with a groove (notshown) in which the lower edge of the globe g fits. The upperpart of theglobe g is of a diameter substantially the same as the diameter of thelower part of the dome, and, as shown clearly in dotted lines, encirclesand receives the lower part of the dome,

the arrangement being such that when the p parts are adjusted as shownin Fig. l of the drawings the globe 9 will be firmlyheld in position onthetable 'h.

Surrounding the dome d is a metallic cap or shade 2', having an openingj, which is substantially the. diameter of the dome d and graduallyflaring outwardly toward its base. This cap 1' is arranged to slide upand down along. the dome d, its normal position when the globe g is inplace being shown in full lines in Fig. l and resting upon the upperedge of the globe When it is desired to remove the globe g, the cap t'is moved upward to the position shown in dotted lines, and I haveprovided suitable means-such as a spring-latch 70, having a hooked endarranged to take over a bead or rib Z-at the upper edge of the dome,whereby the cap will be held in dotted-line position while the globe gis being removed or replaced- For the purpose of facilitating theremoval of the globe g I have pivotally mounted the dome (1 upon theinturned upper ends of the pipes e and 0, so that said dome may betilted, as shown in dotted lines, Fig. 2, and before the globe 9 can beremoved the dome cl must be moved to the position shown in dotted lines.In order to maintain the dome d in the full-line position shown in Fig.2 and to prevent its accidental tipping, I have provided the same with alatch on, having a in dotted lines, Fig. 1, whereupon the dome 01 willbe tilted, as shown in Fig. 2, permitting the ready removal of the globeg.

The dome dis provided with an opening 10, which may be closed by asuitable sliding plate (not shown) whereby to permit the entrance of amatch orother light to ignite the Vapor forming the light.

It is desirable in lamps of this kind to regulate the admission of airto the vaporizing apparatus, the air entering the dome d at an openingsurrounded by a cup-shaped or an nular disk g, and I have provided a capor cover 4', having athreaded opening arranged to engage a shortthreaded section 8 on the upper end of the pipe e, the arrangement beingsuch that the cap 1" may be adjusted to and from the cup-shaped disk g.By this means I control the flow of air to the vapor- 1 l0 izingapparatus.

The operation of my invention has been sufficiently set forth inconnection with the foregoing description of its form and arrangement,and a further description thereof is deemed unnecessary.

Having described my invention, I claim as new and desire to protect byLetters Patent of the United Statesing said upright standards, and a'latch secured to the dome and adapted to engage said transverse member,substantially as described.

2. A lamp: provided with a table, a globe resting upon said table, adome engaging the upper end of the globe, an elongated rib upon saiddome, a shade slidingly fitted upon said dome and normally resting uponthe globe, and a latch mounted upon said shade and adapted to engage therib for holding the shade raised, substantially as described.

'3; A lamp provided .with a table, a globe resting on said table, a domepivoted to upright standards and engaging the upper end of said globe, atransverse member connecting said upright standards, a latch secured tothe dome and adapted to engage said transverse member, a shade slidinglyfitted upon said dome and complementary latch elements secured to saiddome and to said shade Whereby the shade may be held in an elevatedposition, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM F. LOUDON.

Witnesses: V

MARY A. KENNEY, T. HART ANDERSON,

